Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.

[EX Q]: Blanching: Blanching is the quick-coddle method used for food safety when preparing a recipe that calls for raw eggs that won’t be cooked in a later step (Caesar dressing, homemade mayonnaise, etc.) or to heat up a previously cooked soft- or hard-boiled egg. Raw eggs that have been removed from their shells should be refrigerated in a tightly covered container. Refrigerated whole egg yolks should be covered with water to prevent them from drying out; drain before using. The following chart shows how long hard-boiled eggs and raw eggs last when stored in the refrigerator. Well, for one thing do you know how long the eggs have been previously hard boiled by the vendor? Once eggs are cooked, they should be used within one (1) week. It doesn’t matter if they are peeled or not. If is preferable not to peel them until you are ready to eat or use in your recipe. 7 Comments Latest Feb 10, 2015 by FinalOpinion. 1  a. aretasf1 Apr 10, 2009 I've always heard if you coat the shells (after cooling) with butter or oil, they will last 2-3 weeks refridgerated. 2  s. schwaigen Apr 20, 2009 Thank god, I can show this to my husband. 3  s. When stored in a freezer 0 degrees Fahrenheit or colder, they will stay good for about a year. Freezing raw whole eggs in their shells is not recommended, nor is it recommended that hard-boiled eggs — either in a shell or peeled — be frozen. Want to know how to peel a hard-boiled egg without damaging the whites? Check this out. Peeled hard boiled eggs can be stored in the refrigerator in a bowl of cold water to cover for about 1 week (change the water daily) – or in a sealed container without water (cover the eggs with damp paper towels) for the same length of time. Hard-boiled eggs can be stored in the shell in the refrigerator and last up to four days. The whites of hard-boiled eggs get rubbery when frozen, but you can freeze the yolks for later if you’d like. Eggs that have been cooked outside of the shell -- such as scrambled or fried -- don’t keep as long as hard-boiled eggs. To maximize their storage life, cool the cooked eggs quickly by placing in shallow containers, and refrigerate within two hours. They will keep for three to four days at most. Hard-boiled eggs are handy to have on hand for a snack, a salad topping or to use in recipes. They will last about one week (seven days) in the refrigerator, either peeled or unpeeled. Hard-boiled eggs are ideally kept in their shell until ready to use. Soft-cooked (boiled) eggs – 5 minutes. The perfect soft boiled egg has firmly set whites, but a soft runny yolk. Serve in an egg cup by placing the egg in the cup with the small end down. Slice off large the end of egg with knife, egg scissors or egg topper and eat from the shell with a spoon. Query: how long are peeled hard boiled eggs good for
[EX A]: Peeled hard boiled eggs can be stored in the refrigerator in a bowl of cold water to cover for about 1 week.

[EX Q]: Product: You recharge this electronic hand warmer via USB. (Expect it to take about 65 minutes to fully power up.) Unlike classic hand warmers designed to nest in the palm of a glove, the GreenHeat looks like a medium-size candy bar that you grip in your hands. Hand warmers are small packets which are held in the hand and produce heat on demand to warm cold hands. They are commonly used in outdoor activities. Other types of warmers are available to provide soothing heat for muscular or joint aches. Depending on the type and the source of heat, hand warmers can last from 30 minutes up to 24 hours. The hand warmer was created by Japanese inventor Niichi Matoba. Matoba received a patent for applying the principle of an oxidation reaction that produces hea Hi all - I carry both the Grabber Hand and Foot Warmers in my pack, as emergency gear. Thankfully, I don't use them too much, so I was wondering if they expire. I noticed at the bottom that they have a Validity Date, which I couldn't read, even with a magnifying glass. I sent an email to Grabber Performance, who makes the Warmers products. They promptly replied, indicating that the expiration date is in 4 years from manufacture and the Validity Date (if you can read it) is the same thing as the Expiration Date. Warmers operate on a chemical reaction with air similar to rusting. The warmer ingredients are iron, water, cellulose, vermiculite, activated carbon and salt. The heating process takes place in this fashion: The iron in the pouch, when exposed to oxygen, oxidizes and therefore produces heat (aka, Air Activated). A pair of air-activated disposable hand warmers, US quarter for scale. Hand warmers are small (mostly disposable) packets which are held in the hand and produce heat on demand to warm cold hands. They are commonly used in outdoor activities. Other types of warmers are available to provide soothing heat for muscular or joint aches. Depending on the type and the source of heat, hand warmers can last from 30 minutes (recrystallisation) up to 24 hours (platinum catalyst). The hand warmer was created by Japanese inventor Niichi Matoba. Types of Hand Warmers. When it comes to hand warmers, there are two types of chemical reactions used to generate heat: supersaturated solution and air-activated. These chemical reactions work to produce an exothermic release of heat, but do so through very different methods. Types of Hand Warmers When it comes to hand warmers, there are two types of chemical reactions used to generate heat: supersaturated solution and air-activated. These chemical reactions work to produce an exothermic release of heat, but do so through very different methods. These types of warmers are best implemented when placed in tight spaces, such as in a glove, shoe or pocket. HotSnapZ Reusable Hand warmers & Heat Pads. 1  Easily Reactivated in Boiling Water The heat reverses the chemistry inside and stores the heat for later use. 2  Fast Instant Heat in a Snap Instant Robust heat reaches internal temperature of 120-130F. Self-regulating. The second type of hand warmers use a chemical reaction called a supersaturated solution. These generally contain metal discs in the middle of them. In order to activate heat, the metal disc must be snapped. Hot Hands warmers work like any other chemical warmer... through an oxidation process (rusting). Different ingredients within the warmer have different purposes. What creates a quality warmer? The quality of those ingredients. Query: how does hot hands hand warmers work
[EX A]: Warmers operate on a chemical reaction with air similar to rusting. The warmer ingredients are iron, water, cellulose, vermiculite, activated carbon and salt. The heating process takes place in this fashion: The iron in the pouch, when exposed to oxygen, oxidizes and therefore produces heat.

[EX Q]: Phosphoric acid: Phosphoric acid, (H3PO4), the most important oxygen acid of phosphorus, used to make phosphate salts for fertilizers. It is also used in dental cements, in the preparation of Cola drinks contain a lot of phosphate - so much, in fact, that they can cause too much phosphate in the blood. People use phosphate salts for medicine. Be careful not to confuse phosphate salts with substances such as organophosphates, or with tribasic sodium phosphates and tribasic potassium phosphates, which are very poisonous. This acid is too strong to be used on plants and must be combined with other chemicals to raise the pH of the solution and decrease the potential for plant injury. One means of reducing the acidity of phosphonic acid is to neutralize it with an alkali salt; typically potassium hydroxide (KOH). Assorted References. 1  major reference (in oxyacid: Orthophosphoric acid and phosphate salts) 2  chemical industry (in chemical industry: Phosphorus) 3  nomenclature of acids (in chemical compound: Acids) 4  organosulfur compounds (in organosulfur compound: Preparation) 5  oxyacids (in oxyacid) Phosphonate compounds also occur naturally in some lower life forms, including protozoa, mollusks, coelenterates, and oomycete fungi (6). For this article, we use the term phosphonate to describe only those products made up of the salts and esters of phosphorous acid (HPO(OH) 2 ). Phosphorous acid is a solid substance that can be purchased through chemical supply companies. When mixed with water, it forms a strong acid called phosphonic acid. Among the important phosphate salts are: sodium dihydrogen phosphate (NaH 2 PO 4), used for control of hydrogen ion concentration (acidity) of solutions; disodium hydrogen phosphate (Na 2 HPO 4), used in water treatment as a precipitant for highly charged metal cations; trisodium phosphate (Na 3 PO 4), used in soaps and detergents; calcium dihydrogen phosphate or calcium superphosphate (Ca[H 2 PO 4] 2), a major fertilizer ingredient; calcium monohydrogen phosphate (CaHPO 4), used as a ... Phosphate salts are also used for improving exercise performance, as an antacid for gastroesophageal reflux disease , and as a laxative for emptying the bowels before surgery. Phosphate salts and calcium are applied to sensitive teeth to reduce pain. Rectally, phosphate salts are used as a laxative to clean the bowels before surgery or intestinal tests. Healthcare providers sometimes give potassium phosphate intravenously (by IV) for treating low phosphate and high calcium levels in the blood, and for preventing low phosphate in patients who are being tube-fed. Phosphoric acid, also called orthophosphoric acid, (H 3 PO 4), the most important oxygen acid of phosphorus, used to make phosphate salts for fertilizers. It is also used in dental cements, in the preparation of albumin derivatives, and in the sugar and textile industries. It serves as an acidic, fruitlike flavouring in food products. 1  Pure phosphoric acid is a crystalline solid (melting point 42.35° C, or 108.2° F); in less concentrated form it is a colourless syrupy liquid. 2  Phosphoric acid forms three classes of salts corresponding to replacement of one, two, or three hydrogen atoms. Written By: Phosphoric acid, also called orthophosphoric acid, (H3PO4), the most important oxygen acid of phosphorus, used to make phosphate salts for fertilizers. It is also used in dental cements, in the preparation of albumin derivatives, and in the sugar and textile industries. It serves as an acidic, fruitlike flavouring in food products. 1  Pure phosphoric acid is a crystalline solid (melting point 42.35° C, or 108.2° F); in less concentrated form it is a colourless syrupy liquid. The crude acid is prepared from phosphate rock, while acid of higher purity is made from white phosphorus. Query: how is phosphate salts used
[EX A]:
Phosphate salts are also used for improving exercise performance, as an antacid for gastroesophageal reflux disease , and as a laxative for emptying the bowels before surgery. Phosphate salts are used as a laxative to clean the bowels before surgery or intestinal tests.

